How to download and install macOS 10.14.6 developer beta 1 to your Mac

macOS Mojave 10.14.4 will be arriving soon with new features that need testing before they're launched to the public. As usual, Apple is providing an early version of this macOS release to developers so that they can test their apps against it and prepare for its release to Mac owners.

What's new in the macOS Mojave beta?

May 19, 2019: Apple releases macOS 10.14.6 beta 1 for developers

Apple has just released macOS Mojave 10.14.6 beta 1 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.6 to start testing with macOS, now's the time to start downloading.

May 7, 2019: Apple releases macOS 10.14.5 beta 5 for developers

Apple has just released macOS Mojave 10.14.5 beta 5 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.5 to start testing with macOS, now's the time to start downloading.

April 29, 2019: Apple releases macOS 10.14.5 beta 4 for developers

Apple has just released macOS Mojave 10.14.5 beta 4 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.5 to start testing with macOS, now's the time to start downloading.

April 22, 2019: Apple releases macOS 10.14.5 beta 3 for developers

Apple has just released macOS Mojave 10.14.5 beta 3 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.5 to start testing with macOS, now's the time to start downloading.

April 8, 2019: Apple releases macOS 10.14.5 beta 2 for developers

Apple has just released macOS Mojave 10.14.5 beta 2 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.5 to start testing with macOS, now's the time to start downloading.

March 27, 2019: Apple releases macOS 10.14.5 beta 1 for developers

Apple has just released macOS Mojave 10.14.5 beta 1 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.5 to start testing with macOS, now's the time to start downloading.

March 18, 2019: Apple releases macOS 10.14.4 beta 6 for developers

Apple has just released macOS Mojave 10.14.4 beta 6 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.4 to start testing with macOS, now's the time to start downloading.

March 11, 2019: Apple releases macOS 10.14.4 beta 5 for developers

Apple has just released macOS Mojave 10.14.4 beta 5 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.4 to start testing with macOS, now's the time to start downloading.

March 4, 2019: Apple releases macOS 10.14.4 beta 4 for developers

Apple has just released macOS Mojave 10.14.4 beta 4 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.4 to start testing with macOS, now's the time to start downloading.

February 18, 2019: Apple releases macOS 10.14.4 beta 3 for developers

Apple has just released macOS Mojave 10.14.4 beta 3 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.4 to start testing with macOS, now's the time to start downloading.

February 4, 2019: Apple releases macOS 10.14.4 beta 2 for developers

Apple has just released macOS Mojave 10.14.4 beta 2 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.4 to start testing with macOS, now's the time to start downloading.

January 24, 2019: Apple releases macOS 10.14.4 beta 1 for developers

Apple has just released macOS Mojave 10.14.4 beta 1 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.4 to start testing with macOS, now's the time to start downloading.

January 10, 2019: Apple releases macOS 10.14.3 beta 4 for developers

Apple has just released macOS Mojave 10.14.3 beta 4 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.3 to start testing with macOS, now's the time to start downloading.

January 7, 2019: Apple releases macOS 10.14.3 beta 3 for developers

Apple has just released macOS Mojave 10.14.3 beta 3 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.3 to start testing with macOS, now's the time to start downloading.

December 19, 2018: Apple releases macOS 10.14.3 beta 2 for developers

Apple has just released macOS Mojave 10.14.3 beta 2 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.3 to start testing with macOS, now's the time to start downloading.

December 10, 2018: Apple releases macOS 10.14.3 beta 1 for developers

Apple has just released macOS Mojave 10.14.3 beta 1 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.3 to start testing with macOS, now's the time to start downloading.

November 15, 2018: Apple releases macOS 10.14.2 beta 3 for developers

Apple has just released macOS Mojave 10.14.2 beta 3 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.2 to start testing with macOS, now's the time to start downloading.

November 7, 2018: Apple releases macOS 10.14.2 beta 2 for developers

Apple has just released macOS Mojave 10.14.2 beta 2 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.2 to start testing with macOS, now's the time to start downloading.

November 1, 2018: Apple releases macOS 10.14.2 beta 1 for developers

Apple has just released macOS Mojave 10.14.2 beta 1 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.2 to start testing with macOS, now's the time to start downloading.

October 23, 2018: Apple releases macOS 10.14.1 beta 5 for developers

Apple has just released macOS Mojave 10.14.1 beta 5 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.1 to start testing with macOS, now's the time to start downloading.

October 17, 2018: Apple releases macOS 10.14.1 beta 4 for developers

Apple has just released macOS Mojave 10.14.1 beta 4 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.1 to start testing with macOS, now's the time to start downloading.

October 8, 2018: Apple releases macOS 10.14.1 beta 3 for developers

Apple has just released macOS Mojave 10.14.1 beta 3 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.1 to start testing with macOS, now's the time to start downloading.

October 2, 2018: Apple releases macOS 10.14.1 beta 2 for developers

Apple has just released macOS Mojave 10.14.1 beta 2 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.1 to start testing with macOS, now's the time to start downloading.

September 25, 2018: Apple releases macOS 10.14.1 for developers

Apple has just released macOS Mojave 10.14.1 beta 1 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14.1 to start testing with macOS, now's the time to start downloading.

Apple has just released macOS Mojave 10.14 beta 11 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14 to start testing with macOS, now's the time to start downloading.

September 4, 2018: Apple releases macOS Mojave beta 10 for developers

Apple has just released macOS Mojave 10.14 beta 10 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14 to start testing with macOS, now's the time to start downloading.

August 27, 2018: Apple releases macOS Mojave beta 8 for developers

Apple has just released macOS Mojave 10.14 beta 9 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14 to start testing with macOS, now's the time to start downloading.

August 20, 2018: Apple releases macOS Mojave beta 8 for developers

Apple has just released macOS Mojave 10.14 beta 8 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14 to start testing with macOS, now's the time to start downloading.

August 13, 2018: Apple releases macOS Mojave beta 7 for developers

Apple has just released macOS Mojave 10.14 beta 7 for developers. If you already have the macOS developer beta installed, head to Mac App Store > Updates and download away. If you've been waiting for macOS 10.14 to start testing with macOS, now's the time to start downloading.

How to make an archived backup of your Mac with Time Machine

Before you begin, make sure you back up your Mac. The download and installation process is fairly easy, but any time you make significant changes to your computer, you risk problems. When it comes to securing your data, it is definitely better to be safe than sorry. Even if you just backed everything up the night before, make sure your Mac is completely up-to-date.

Connect an external hard disk or Time Capsule with a USB, FireWire, or Thunderbolt cable.

Click on the Apple icon () in the upper left corner of your screen.

Select System Preferences... from the dropdown menu.

Select Time Machine in the System Preferences window.

Turn the Time Machine slider On.

Click Select Backup Disk and choose the disk you'd like to use.

Time Machine will format the hard drive for backups and start within two minutes.

How to download the macOS Mojave developer beta

Downloading the latest beta on your Mac is as simple as visiting Apple's developer portal.

Double-click macOSDeveloperBetaAccessUtility.pkg to run the installer.

When the installer is finished downloading, the Mac App Store will automatically open to the Updates section. Click Update to download and install the developer beta software. After the software has been downloaded, your Mac will automatically restart.

If the latest developer beta does not appear on the Updates list, restart your Mac. Then, open the Mac App Store and click the Updates tab.

The developer beta update can take a long time to finish downloading, depending on the size. You can check the status in the Updates tab of the Mac App Store.

How to install the macOS Mojave developer beta

After macOS Mojave is finished downloading, you will be prompted to install the software automatically.

Click on Continue.

Agree to Apple's Terms and Conditions.

Click on Install.

Follow the instructions to install macOS Mojave.

Your Mac will reboot to install macOS Mojave. You'll see a black screen with the Apple Logo and a progress bar. Grab a cup of coffee while you wait for the software to finish installing.

How to install the macOS Mojave beta on a partition

To keep your Mac's data from getting corrupted by a beta operating system, you can partition your Mac's hard drive to run macOS Mojave in tandem with your current operating system.

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Joseph Keller

Joseph Keller is a senior writer at iMore. An Apple user for more than a decade and a half, he spends his time learning the ins and outs of iOS and macOS, always finding ways of getting the most out of his iPhone, iPad, and Mac.